Search a number
-
+
47199143 = 311522553
BaseRepresentation
bin1011010000001…
…1001110100111
310021210222001102
42310003032213
544040333033
64403350315
71112120555
oct264031647
9107728042
1047199143
1124708462
121398239b
139a175b4
1463a8bd5
154224de8
hex2d033a7

47199143 has 4 divisors (see below), whose sum is σ = 48721728. Its totient is φ = 45676560.

The previous prime is 47199073. The next prime is 47199149. The reversal of 47199143 is 34199174.

47199143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47199143 - 212 = 47195047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47199097 and 47199106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47199149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761246 + ... + 761307.

It is an arithmetic number, because the mean of its divisors is an integer number (12180432).

Almost surely, 247199143 is an apocalyptic number.

47199143 is a deficient number, since it is larger than the sum of its proper divisors (1522585).

47199143 is a wasteful number, since it uses less digits than its factorization.

47199143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522584.

The product of its digits is 27216, while the sum is 38.

The square root of 47199143 is about 6870.1632440576. The cubic root of 47199143 is about 361.3915866020.

The spelling of 47199143 in words is "forty-seven million, one hundred ninety-nine thousand, one hundred forty-three".

Divisors: 1 31 1522553 47199143